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Proceedings Paper

Optical caustics associated with the primary and the secondary rainbows of oblate droplets
Author(s): Haitao Yu; Jianqi Shen; Cameron Tropea
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Paper Abstract

The vector ray tracing (VRT) model is used to simulate the optical caustic structures near the primary and the secondary rainbow angles of oblate water droplets. The evolution process of the optical caustic structures in response to shape deformation of the water droplet is discussed. The dependence of the caustic structures on equatorial radius, refractive index and aspect ratio of the droplet are studied and the curvatures of the two rainbow fringes are calculated.

Paper Details

Date Published: 6 August 2014
PDF: 6 pages
Proc. SPIE 9232, International Conference on Optical Particle Characterization (OPC 2014), 923207 (6 August 2014); doi: 10.1117/12.2063537
Show Author Affiliations
Haitao Yu, Univ. of Shanghai for Science and Technology (China)
Technische Univ. Darmstadt (Germany)
Jianqi Shen, Univ. of Shanghai for Science and Technology (China)
Cameron Tropea, Technische Univ. Darmstadt (Germany)


Published in SPIE Proceedings Vol. 9232:
International Conference on Optical Particle Characterization (OPC 2014)
Nobuhiro Aya; Norihiko Iki; Tsutomu Shimura; Tomohiro Shirai, Editor(s)

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